Golang TCP客户端实现用户改名以及私聊

Posted 2021-06-06 卑微的小李

 

通过嵌套循环实现用户选择操作

	for  {
		switch flag {
		case 1:
			println("输入发送内容，发送end 回到上级目录")
			var msg  string
			fmt.Scanln(&msg)
			for msg != "end" {
				client.brodCast(msg)
				fmt.Scanln(&msg)
			}
		case 2:
			client.getUserList()
			println("输入用户名称，发送end 回到上级目录")
			var toUser  string
			fmt.Scanln(&toUser)
			if toUser != "end" {
				println("输入发送内容，发送end 回到上级目录")
				var msg  string
				fmt.Scanln(&msg)
				for msg != "end" {
					client.msg2User(toUser,msg)
					fmt.Scanln(&msg)
				}
			}
		case 3:
			println("输入用户名称，发送end 回到上级目录")
			var rename  string
			fmt.Scanln(&rename)
			if rename != "end" {
				client.rename(rename)
			}
		case 4:
			println("exit")
			os.Exit(1)
		default:
			println("input invalid")

		}

		fmt.Println("1.公聊模式")
		fmt.Println("2.私聊模式")
		fmt.Println("3.修改用户名")
		fmt.Println("4.退出")
		fmt.Scanln(&flag)
	}

 

根据与服务器的协议，发送广播消息

func (this* Client) msg2User(user string,msg string)  {
	_,err := this.Conn.Write([]byte("to|"+user+"|"+msg))
	if err != nil {
		fmt.Println("server brodCast err:",err)
	}
}
func (this* Client) rename(name string)  {
	_,err := this.Conn.Write([]byte("rename|"+name))
	if err != nil {
		fmt.Println("server brodCast err:",err)
	}
}

func (this* Client) getUserList()  {
	_,err := this.Conn.Write([]byte("who:"))
	if err != nil {
		fmt.Println("server brodCast err:",err)
	}
}

 

 

 

效果：

 

目录：

Golang 从入门到放弃